RatCity — Chicago Rat and Rodent Sightings Map

RatCity

4092 locations in the last 30 days (4268 reports) · Last sighting 15 hours ago

📰 Blog
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What am I looking at?

Each circle is a Chicago neighborhood. The number is its report count — click one to zoom in and see individual sightings there.

32080fewer → more

Colors are relative to what’s currently on screen, so they adjust as you switch time ranges.

Zoomed into a neighborhood or zip? Same colors group nearby reports, and a bright dot means that exact spot’s been reported more than once.

📰 This week’s rat recap

Weekly Rat Trends — Nov 2–Nov 8, 2026

  • 🐀 948 new reports — down 7% from the week before
  • 👑 Lake View is Rat King with 67 reports
  • 📈 Biggest jump: Logan Square, up 15 from last week
  • 🏙️ The city took 9.7 days on average to resolve a complaint
Read the full recap →

Why Chicago keeps score on its rats

Chicago has topped national rankings of the rattiest U.S. cities for over a decade running — a reputation the city itself takes seriously enough to run one of the country’s most active 311 rodent-complaint programs. Every baiting request, burrow report, and complaint filed with the city becomes a public record. RatCity turns that record, plus reports from people who live here, into a map you can actually use: is this block bad? Is it getting worse? Which neighborhood is winning (or losing) the fight this month?

What’s actually on the map

Most of the data is Chicago’s own — every “Rodent Baiting/Rat Complaint” filed through 311, pulled in automatically once a day so the map never goes stale. Layered on top are sightings reported directly by visitors, matched to the same neighborhood and zip-code boundaries the city uses, so a resident’s report and an official 311 complaint carry equal weight on the map.

Reading the map

Circles are sized and colored by how many reports a neighborhood has racked up — blue is quiet, red means trouble. The Day / Week / 30 Days / Year toggle up top changes the window, so you can see whether a neighborhood’s rat problem is a one-week blip or a year-long trend. Whoever’s in the lead gets crowned the neighborhood Rat King in the sidebar, a title that changes hands as new reports come in.

Noticed a rat that isn’t on the map yet? Use “Report a sighting” above — it takes under a minute and goes live as soon as it’s reviewed. Curious about where the data actually comes from or how reports are moderated? See the About page for the full breakdown.

Want more? The blog has weekly trend recaps and guides on Chicago’s rat problem and how to keep it out of your home.

Browse every sighting

60,241 reports match your filters.

DateAddressNeighborhoodWardStatusResponse timeReported viaSource
10/6/202510034 S WENTWORTH AVERoseland9Completed9 daysPhone CallCity 311
10/6/20252236 N KEDVALE AVEHermosa35Completed9 daysPhone CallCity 311
10/6/20255412 S LOTUS AVEGarfield Ridge23Completed3 daysAlderman's OfficeCity 311
10/6/20256019 W ADDISON STDunning30Completed8 daysPhone CallCity 311
10/6/20253563 W MEDILL AVELogan Square35Completed10 daysPhone CallCity 311
10/6/20251630 S ADA STLower West Side25Completed4 daysPhone CallCity 311
10/6/202510844 S AVENUE JEast Side10Completed4 daysWalk-inCity 311
10/6/2025447 E 88TH PLChatham8Completed4 daysMobile DeviceCity 311
10/6/202510845 S AVENUE JEast Side10Completed4 daysWalk-inCity 311
10/6/20255225 S ASHLAND AVENew City16Completed4 daysInternetCity 311
10/6/20255524 S HONORE STWest Englewood16Completed4 daysPhone CallCity 311
10/6/20253853 W FILLMORE STNorth Lawndale24Completed3 daysPhone CallCity 311
10/6/2025124 N MOZART STEast Garfield Park27Completed4 daysPhone CallCity 311
10/6/20257229 N DAMEN AVERogers Park49Completed8 daysPhone CallCity 311
10/6/20254141 N KENMORE AVEUptown46Completed8 daysPhone CallCity 311
10/6/20256129 S SACRAMENTO AVEChicago Lawn15Completed3 daysInternetCity 311
10/6/20252402 N WASHTENAW AVELogan Square1Completed9 daysPhone CallCity 311
10/6/20252130 N RACINE AVELincoln Park2Completed4 daysPhone CallCity 311
10/6/2025734 N SAWYER AVEHumboldt Park27Completed4 daysPhone CallCity 311
10/6/20253849 N FRANCISCO AVEIrving Park33Completed8 daysMobile DeviceCity 311
10/6/20256337 S CALIFORNIA AVEChicago Lawn16Completed0 daysPhone CallCity 311
10/6/20255222 W 64TH PLClearing13Completed3 daysAlderman's OfficeCity 311
10/6/20256604 S KOSTNER AVEWest Lawn13Completed3 daysAlderman's OfficeCity 311
10/6/20257009 W MELROSE STDunning29Completed4 daysPhone CallCity 311
10/6/20255730 N SHERIDAN RDEdgewater48Completed8 daysInternetCity 311
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